And while the girls are ministering to the poor little victim of the accident, the opportunity will be taken to tell new readers something about the Outdoor Girls and their activities and adventures in other volumes of this series.

Betty Nelson, gay and fun-loving, possessed the natural gift of leadership which had earned for her the title of "Little Captain." The girls adored her and followed her unquestioningly wherever she led.

Grace Ford was a graceful, tall, pretty girl with a decided and insatiable fondness for chocolate candy. At the outbreak of the war, or rather, at the time of America's entry into the war, her brother Will had caused her great unhappiness by his failure to enlist with the other boys of her acquaintance. The mystery had been satisfactorily explained later, however, and when this story opens, Will was on his way to make a splendid soldier in America's army of democracy.

There was a bit of French blood in Mollie Billette, or "Billy," as the girls sometimes called her. Bright black eyes which could, upon occasion, snap fire and a rather unruly temper attested to this French ancestry.

The last one of the quartette was Amy Blackford, quiet and retiring, but given to occasional outbursts which never failed to surprise and delight the girls. The mystery which at one time had surrounded her origin had been cleared up some years before by the finding of Henry Blackford, her long-lost brother.

How the girls formed a camping and tramp club and the fun they had on their interesting and adventurous tour, has been told in the first volume of the series, entitled "The Outdoor Girls of Deepdale."

After this the girls had many adventures, first at Rainbow Lake, to which they went on another tour, this time in an automobile. From there they went to a winter camp where they had many varied and exciting experiences on skates and iceboats. Then followed a glorious trip to Florida, where the girls braved many dangers and took thrilling trips into the wilds of the interior.

Their next adventure took them to Ocean View and centered about a mysterious box they found in the sand.

Then followed that glorious trip to Pine Island. An aunt of Mollie Billette had turned her bungalow over to the Outdoor Girls for the summer. During their strenuous adventures the girls had made many friends among the boys and young men of Deepdale, and four of these had asked and been granted permission by the girls to accompany them to Pine Island and pitch their camp in the woods near by.

One of the young men was Allen Washburn, a rising young lawyer and a great admirer of Betty. Another was Will Ford, Grace's brother, and a third was his high school chum, Frank Haley. The fourth, Roy Anderson, had been drawn into the circle chiefly through his admiration for Grace.